There are 68 words hidden in the letters of EXACTLY, from 13 two-letter words up to EXACTLY (7 letters). For points, EXACTLY is best at 19.
No other single word uses all 7 letters of EXACTLY. EXACTLY has 7 letters: 2 vowels and 5 consonants, worth 19 points before any board bonuses.
7-letter words 1
6-letter words 1
acetyl11
5-letter words 8
calyx17cleat7eclat7exact14exalt12lacey10latex12lycea10
4-letter words 17
acyl9alec6axel11axle11calx13cate6celt6clay9lace6lacy9late4tace6tael4talc6tale4teal4tela4
3-letter words 28
ace5act5ale3alt3ate3axe10aye6cat5cay8cel5eat3eta3lac5lat3lax10lay6lea3let3lex10ley6lye6tae3tax10tea3tel3tye6yea6yet6
2-letter words 13
ae2al2at2ax9ay5el2et2ex9la2lx9ta2ya5ye5
Words are from our open word list and include some game-only words. Rude words are left out of this page; the unscrambler shows every valid word, lets you add blank tiles and filter by length.